Rager



(No Model.)

R. I-I. RAPRAGER. PUMP,

No. 478,464. Patented July 5, 1892.

A TTOHNEYS we News PETERS co4, mommmn., wAsHmaon n e llNrrnD STATES ATENT FFICE.

ROBERT HENRY RAPRAGER, OF LAKOTA, NORTH DAKOTA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 478,464, dated July 5, 1892.

v Application filed January 15, 1892. Serial No. 418,191. (No model.)

To all whom it may concern:-

Be it known that I, ROBERT HENRY RAP- RAGER, of Lakota, in the county of Nelson and State of North Dakota, have invented a new and Improved Pump, of which the following 1s a full, clear, and exact description.

The object of the invention is to provide a new and improved pump which is simple and durable in construction, very effective, easy, and double-actin g in operation, and not liable to get out of order, and adapted for use in a cold climate, as all the pumping parts being below the surface of the water are thereby protected from freezing.

The invention consists of two plunger-barrels connected with each other at the bottom and provided atthe top with inlet-valves.

The invention also consists of certain parts and details andcombinations of the same, as will be hereinafter described, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate' corresponding parts in all the figures.

Figure l is a side elevation of theimprovement as applied and with parts in section. Fig. 2 is a sectional side elevation of the plunger-barrels on the line 2 2 in Fig. 3, and Fig. 3 is asectional plan View of the improvement on the line 3 3 in Fig. l.

The improved pump is provided with two plunger-barrels A and B, formed in a single casing O, provided in its solid top D with inlet-.ports a and b and outlet-ports c and d. The lower ends of the plunger-barrels A and B are in communication with each other, and for this purpose the bottom E of the casing is formed in its middle with a recess E', extending below the division-wall F, arranged between the two barrels A and B.

The inlet-ports a and b are adapted to be closed from the inside of the plunger-barrels by valves G and G', respectively, held normally against their seats in the said top D by springs G2, resting on a cross-bar G2, held within the casing O. The outlet-ports c and CZ are normally closed by valves H and H', adapted to be seated on the outer surface of the top D, both being pivoted on the pin H2, extending transversely and heldin the airchalnber I, secured to the top of the casing C and provided with a pipe J, extending upward to the top of the Well,passing through a suitable platform K on the top of the well, as

plainly shown in Fig. l. The outer end of the pipe J is formed with the usual bend J', serving as an outlet.

In the barrels A and B are fitted to slide up and down the pluugers or pistons L and L', 6o

J2, attached to the outlet-pipe J, as shown in f3 5 Fig. l. The upper ends of the plunger-rods N and N' are connected with the cross-heads O and O', respectively fitted to slide on the slide P, clamped or otherwise secured to the .outlet-pipe J. The cross-heads O and O' are 7o pivotally connected with pitmen Q and Q', respectively connected with the crank-arms R and R', respectively held on a shaft S, mounted to turn in suitable bearings formed in brackets K', attached to the under side of 75 the platform K.

On the shaft S is secured a sprocket-wheel T, over which passes a sprocket-chain T', extending upward through the platform K and passing over a sprocketwheel T2, held on a 8o shaft U, mounted to turn in suitable bearings formed in a bracket K2, attached to the top of the platform K. On the shaft U is secured a crank-arm V for conveniently turning the said shaft U, so that the sprocket-Wheel T2, sprocket-chain T', and sprocket-wheel T impart a rotary motion to the shaft S.

The operation is as follows: The barrel-case C is located in the bottom of the well, so as to be completely sub merged in the Water. When 9o the several parts are in the position shown in Fig. l and the operator turns the crank-arm V, the shaft S is rotated as above described, and a sliding motion is given to the crossheads O and O' by' the crank-arms R R' and 95 pitmen Q Q'. The cross-heads O O' impart motion to the rods N and N'-, so that the plungers L and L' move up and down in their barrels A and B. As shown in Fig. 2, the

plunger L is on the upstroke and the plunroo ger L' is on the downstroke, the water from the well entering through the port b past the open valve G into the barrel B, to accumulate therein, the outer valve II closing the port d. The Water on the top of the plunger L in the barrel A is forced upward and ont- Ward through the port c, thus opening the valve H and closing the valve G. The Wat-er passes from the barrel A into the casing I, and from the latter into the outlet-pipe J. On the upstroke of the plunger L the Water previously accumulated in the barrel B is discharged through the port d, the valve I-I being opened by the force of the Water. The ,plungerL at the same time will make its downstroke, so that the valve II Will naturally close or fall onto its seat, while the valve G is yopened and Water enters the barrel A through the port d. It is understood that one plunger .moves upward While the other moves downward, so that a continuous stream of water is forced into the casing I to en ter the dischargepipe J to pass finally through the spout .I at the top of the well. It is understood that in Y order to move the plungers in the direction indicated the crank-arms R and R are set diagonally opposite each other, as plainly shown in Fig. l. By connecting the lower ends of the barrelsA and B With each other no undue pressure or vacuum is created on the alternate up-and-down movement of the plungers. If desired, the barrels A and B below theirvplungers L and L may be filled with a suitable Huid, preferably oil, it being understood that the movement of the fluid Will follow the plungers, so that no undue friction, Vacuum, or pressure is created on either of the plnngers.

I desire it to be understood that I do not limit myself to the arrangement and location of the valves G and G on the inside of the pnrnp-barrels A and B and balanced by the springs G2 and cross-bar G3, as the valves may be located on the outside of the pnmp-barrels and balanced by any equivalent of the springs and cross-bar and be as Well governed by the strokes of the pistons as When located as shown in the drawings.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent- 1. In a pump, the combination, with two plunger-barrels connected with each other at their bottoms, of inlet-valves and outlet-valves arranged in the upper ends of the said barrels, an outlet-pipe formed with a casing, into which discharge the said outlet-valves, plungers fitted to slide in opposite directions in the said barrels, plunger-rods carrying the said plungers, cross-heads rigidly connected With the said plunger-rods, a slide secured on the said outlet-pipe and on which travel the said crossheads, pitmen connected with the said crossheads, crank-arms arranged diametrically opposite each other and connected with the said pitmen, and a shaft mounted to turn and carrying the said crank-arms, substantially as shown and described.

2. In a pump, the combination, with tWo plunger-barrels connected With each other at their bottoms, of inlet-Valves and outlet-valves arranged in the upper ends of the said barrels, an outlet-pipe formed With a casing,into which discharge the said outlet-valves, plungers litted to slide in opposite directions in the said barrels, plunger-rods carrying the said plungers, cross-heads rigidly connected With the said plunger-rods, a slide secured on the said outlet-pipe and on Which travel the said crossheads, pitmen connected with the said crossheads, crank-arms arranged diametrically opposite each other and' connected with the said pitmenLand a shaft mounted to turn and carrying the said crank-arms, a sprocket-Wheel secured on the said shaft, a sprocket-chain passing over the said sprocket-Wheel, a second sprocket-Wheel over which passes the said chain, and a second shaft provided With a crank-arm and carrying the said second sprocket-Wheel, substantially as shown and described.

ROBERT HENRY RAPRAGER.

Witnesses:

WM. H. STANDisH, W. A. PERKINS. 

